Daryl J. Somers (EDT)/ Peter Langridge (EDT)/ J. Perry Gustafson (EDT)
(1)
J. Perry Gustafson (EDT)/ Peter H. Raven (EDT)/ Paul R. Ehrlich (EDT)
(1)
J. Perry Gustafson (EDT)/ R. B. Flavell (EDT)
(1)
J. Perry Gustafson (EDT)/ Randy Shoemaker (EDT)/ John W. Snape (EDT)
(1)